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QEMU With E2K User Support
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851c2a75a6
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Jason Wang 851c2a75a6 virtio-pci: speedup MSI-X masking and unmasking 
This patch tries to speed up the MSI-X masking and unmasking through
the mapping between vector and queues. With this patch it will there's
no need to go through all possible virtqueues, which may help to
reduce the time spent when doing MSI-X masking/unmasking a single
vector when more than hundreds or even thousands of virtqueues were
supported.

Tested with 80 queue pairs virito-net-pci by changing the smp affinity
in the background and doing netperf in the same time:

Before the patch:
5711.70 Gbits/sec
After the patch:
6830.98 Gbits/sec

About 19.6% improvements in throughput.

Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-04-27 21:02:41 +02:00
audio
backends hostmem: Prevent removing an in-use memory backend 2015-04-01 10:06:38 +02:00
block block/iscsi: handle zero events from iscsi_which_events 2015-04-09 10:31:45 +01:00
bsd-user cpu: Make cpu_init() return QOM CPUState object 2015-03-10 17:33:51 +01:00
default-configs hw/usb: Include USB files only if necessary 2015-03-18 11:50:47 +01:00
disas cris: remove unused cris_cond15 declarations 2015-03-19 11:11:55 +03:00
docs fw_cfg: add documentation file (docs/specs/fw_cfg.txt) 2015-04-14 13:21:08 +02:00
dtc@bc895d6d09
fpu softfloat: expand out STATUS macro 2015-02-06 16:11:38 +00:00
fsdev Fix typos in comments 2015-03-19 11:30:37 +03:00
gdb-xml
hw virtio-pci: speedup MSI-X masking and unmasking 2015-04-27 21:02:41 +02:00
include virtio: introduce vector to virtqueues mapping 2015-04-27 21:02:41 +02:00
libcacard libcacard: stop linking against every single 3rd party library 2015-02-10 09:27:20 +03:00
libdecnumber
linux-headers synchronize Linux headers to 4.0-rc3 2015-03-10 09:26:22 +01:00
linux-user rcu: do not create thread in pthread_atfork callback 2015-04-01 10:06:38 +02:00
migration rdma: Fix cleanup in error paths 2015-03-26 15:31:46 +01:00
net net: synchronize net_host_device_remove with host_net_remove_completion 2015-03-12 19:59:39 +00:00
pc-bios pseries: Update SLOF firmware image to qemu-slof-20150313 2015-03-25 22:49:45 +01:00
pixman@87eea99e44
po
qapi block: Document blockdev-add's immaturity 2015-03-27 10:01:12 +00:00
qga qga: fitering out -fstack-protector-strong 2015-04-02 15:57:27 +02:00
qobject
qom qom: Add can_be_deleted callback to UserCreatableClass 2015-04-01 10:06:38 +02:00
roms pseries: Update SLOF firmware image to qemu-slof-20150313 2015-03-25 22:49:45 +01:00
scripts qapi: Drop dead genlist parameter 2015-04-24 14:18:05 -04:00
slirp
stubs pci, pc, virtio fixes and cleanups 2015-03-09 09:14:28 +00:00
sysconfigs/target
target-alpha tcg: Change translator-side labels to a pointer 2015-03-13 12:28:18 -07:00
target-arm target-arm: kvm64 fix save/restore of SPSR regs 2015-04-01 17:57:30 +01:00
target-cris cris: remove unused cris_cond15 declarations 2015-03-19 11:11:55 +03:00
target-i386 target-i386: remove superfluous TARGET_HAS_SMC macro 2015-04-04 09:45:59 +03:00
target-lm32 tcg: Change translator-side labels to a pointer 2015-03-13 12:28:18 -07:00
target-m68k tcg: Change translator-side labels to a pointer 2015-03-13 12:28:18 -07:00
target-microblaze tcg: Change translator-side labels to a pointer 2015-03-13 12:28:18 -07:00
target-mips trivial patches for 2015-03-19 2015-03-19 14:10:20 +00:00
target-moxie target-moxie: Fix warnings from Sparse (one-bit signed bitfield) 2015-03-19 11:11:55 +03:00
target-openrisc tcg: Change translator-side labels to a pointer 2015-03-13 12:28:18 -07:00
target-ppc target-ppc: don't invalidate msr MSR_HVB bit in cpu_post_load 2015-04-17 11:44:01 +01:00
target-s390x Final batch of s390x enhancements/fixes for 2.3: 2015-03-16 11:44:55 +00:00
target-sh4 tcg: Change translator-side labels to a pointer 2015-03-13 12:28:18 -07:00
target-sparc tcg: Change translator-side labels to a pointer 2015-03-13 12:28:18 -07:00
target-tricore target-tricore: Fix check which was always false 2015-04-04 09:45:59 +03:00
target-unicore32 tcg: Change translator-side labels to a pointer 2015-03-13 12:28:18 -07:00
target-xtensa tcg: Change translator-side labels to a pointer 2015-03-13 12:28:18 -07:00
tcg tcg/tcg-op.c: Fix ld/st of 64 bit values on 32-bit bigendian hosts 2015-04-09 10:51:10 +01:00
tests hw/i386: Move ACPI header definitions in an arch-independent location 2015-04-27 20:49:45 +02:00
trace Remove superfluous '\n' around error_report() 2015-03-10 08:15:33 +03:00
ui CVE-2015-1779: limit size of HTTP headers from websockets clients 2015-04-01 17:12:55 +02:00
util util/qemu-config: fix regression of qmp_query_command_line_options 2015-04-02 15:57:27 +02:00
.exrc
.gitignore gitignore: Ignore more .pod files. 2015-04-04 09:45:59 +03:00
.gitmodules
.mailmap
.travis.yml
accel.c
aio-posix.c
aio-win32.c
arch_init.c migration: remove last_sent_block from save_page_header 2015-03-26 15:31:46 +01:00
async.c aio: strengthen memory barriers for bottom half scheduling 2015-04-09 10:29:29 +01:00
balloon.c balloon: improve error msg when adding second device 2015-04-24 14:18:05 -04:00
block.c block: Fix unaligned zero write 2015-03-27 10:01:12 +00:00
blockdev-nbd.c nbd: Fix up comment after commit e140177 2015-03-25 13:38:07 +01:00
blockdev.c block: Fix blockdev-backup not to use funky error class 2015-03-19 16:02:59 +01:00
blockjob.c
bootdevice.c misc: fix typos in copyright declaration 2015-03-26 14:21:43 +01:00
bt-host.c
bt-vhci.c
Changelog
CODING_STYLE
configure Revert seccomp tests that allow it to be used on non-x86 architectures 2015-04-13 12:28:48 +01:00
COPYING
COPYING.LIB
coroutine-gthread.c
coroutine-sigaltstack.c
coroutine-ucontext.c
coroutine-win32.c
cpu-exec.c - vhost-scsi: add bootindex property 2015-02-24 13:58:18 +00:00
cpus.c cpus: Don't kick un-realized cpus. 2015-03-25 13:38:07 +01:00
cputlb.c exec: RCUify AddressSpaceDispatch 2015-02-16 17:30:19 +01:00
device_tree.c machine: query phandle-start machine property 2015-03-11 18:17:11 +01:00
device-hotplug.c pci-hotplug-old: Has been dead for five major releases, bury 2015-03-01 12:37:54 +01:00
disas.c
dma-helpers.c
dump.c
exec.c Revert "exec: Respect as_tranlsate_internal length clamp" 2015-04-01 10:06:38 +02:00
gdbstub.c gdbstub: avoid possible NULL pointer dereference 2015-03-10 08:15:34 +03:00
HACKING
hmp-commands.hx hmp: Fix texinfo documentation 2015-03-19 11:35:52 +03:00
hmp.c hmp: fix crash in 'info block -n -v' 2015-04-17 14:27:42 +01:00
hmp.h qom: Implement qom-set HMP command 2015-03-17 14:31:15 +01:00
iohandler.c
ioport.c
iothread.c async: aio_context_new(): Handle event_notifier_init failure 2014-09-22 11:39:48 +01:00
kvm-all.c kvm-all: Sync dirty-bitmap from kvm before kvm destroy the corresponding dirty_bitmap 2015-04-02 15:58:37 +02:00
kvm-stub.c
LICENSE
main-loop.c
MAINTAINERS misc fixes and cleanups 2015-03-12 09:13:07 +00:00
Makefile Use $(MAKE) for recursive make 2015-04-02 15:58:39 +02:00
Makefile.objs QJSON: Add JSON writer 2015-02-05 17:16:14 +01:00
Makefile.target Makefile.target: binary depends on config-devices 2015-03-01 19:41:50 +01:00
memory_mapping.c
memory.c memory: Move owner-less MemoryRegions to /machine/unattached 2015-03-17 14:31:26 +01:00
module-common.c
monitor.c monitor: check return value of qemu_find_net_clients_except() 2015-04-27 21:02:40 +02:00
nbd.c nbd: Drop unexpected data for NBD_OPT_LIST 2015-03-18 12:07:16 +01:00
numa.c numa: Print warning if no node is assigned to a CPU 2015-03-19 16:20:15 -03:00
os-posix.c rcu: do not create thread in pthread_atfork callback 2015-04-01 10:06:38 +02:00
os-win32.c
page_cache.c
qapi-schema.json migration: Convert 'status' of MigrationInfo to use an enum type 2015-03-17 15:20:37 +01:00
qdev-monitor.c qom: Implement info qom-tree HMP command 2015-03-17 14:31:21 +01:00
qdict-test-data.txt
qemu-bridge-helper.c
qemu-char.c qemu-img: Suppress unhelpful extra errors in convert, amend 2015-02-26 14:51:21 +01:00
qemu-coroutine-io.c coroutine-io: Return -errno in case of error 2015-03-18 12:07:21 +01:00
qemu-coroutine-lock.c
qemu-coroutine-sleep.c coroutine: Drop co_sleep_ns 2014-08-29 10:46:58 +01:00
qemu-coroutine.c coroutine: Clean up qemu_coroutine_enter() 2015-03-09 11:11:59 +01:00
qemu-doc.texi raw-posix: Deprecate host floppy passthrough 2015-03-19 11:43:02 +01:00
qemu-img-cmds.hx
qemu-img.c qemu-img: Avoid qerror_report_err() outside QMP handlers, again 2015-03-16 17:07:25 +01:00
qemu-img.texi
qemu-io-cmds.c qemu-io: Use BlockBackend 2015-02-16 15:07:19 +00:00
qemu-io.c Clean up around error_get_pretty(), qerror_report_err() 2015-02-26 07:01:08 +00:00
qemu-log.c qemu-log: Correct help text of 'log cpu_reset' 2015-02-10 09:27:20 +03:00
qemu-nbd.c nbd: Set block size to BDRV_SECTOR_SIZE 2015-03-18 12:07:01 +01:00
qemu-nbd.texi
qemu-options-wrapper.h
qemu-options.h
qemu-options.hx Block patches for 2.3.0-rc1 2015-03-19 17:47:08 +00:00
qemu-seccomp.c
qemu-tech.texi
qemu-timer.c
qemu.nsi
qemu.sasl
qjson.c QJSON: fix typo in author's email address 2015-02-10 09:27:20 +03:00
qmp-commands.hx qmp-commands: fix incorrect uses of ":O" specifier 2015-04-24 14:18:06 -04:00
qmp.c qom: Add can_be_deleted callback to UserCreatableClass 2015-04-01 10:06:38 +02:00
qtest.c qtest: Use qemu_opt_set() instead of qemu_opts_parse() 2015-02-26 14:52:13 +01:00
README
rules.mak
savevm.c error: Replace error_report() & error_free() with error_report_err() 2015-03-19 11:11:55 +03:00
softmmu_template.h exec: make iotlb RCU-friendly 2015-02-16 17:30:19 +01:00
spice-qemu-char.c spice: Add missing 'static' attribute 2015-02-10 10:26:05 +03:00
tcg-runtime.c
tci.c tcg: Remove unused opcodes 2015-02-12 21:21:38 -08:00
thread-pool.c
thunk.c
tpm.c tpm: Remove superfluous '\n' around error_report() 2015-03-10 08:15:33 +03:00
trace-events s390x/kvm: trace all SIGP orders 2015-03-10 09:26:22 +01:00
translate-all.c target-i386: remove superfluous TARGET_HAS_SMC macro 2015-04-04 09:45:59 +03:00
translate-all.h
user-exec.c user-exec.c: fix build on NetBSD/sparc64 and NetBSD/arm 2015-03-13 15:57:00 +00:00
VERSION Open 2.4 development tree 2015-04-25 22:05:07 +01:00
version.rc
vl.c Avoid crashing on multiple -incoming 2015-03-26 15:31:46 +01:00
xen-common-stub.c
xen-common.c
xen-hvm-stub.c xen: Remove xen_cmos_set_s3_resume() 2015-03-10 08:15:33 +03:00
xen-hvm.c
xen-mapcache.c

README 

Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org

- QEMU team